Magnetostrictive Liquid Level Transmitters with Temposonics … · 2016-04-06 · 6A Heavy Oils...

Level Plus®

Modbus Interface ManualLP Series

Magnetostrictive Liquid Level Transmitterswith Temposonics® Technology

2

Modbus Interface Manual LP Series

Table of contents

1. Contact information ....................................................................32. Terms and definitions .................................................................43. Introduction .................................................................................64. Safety instructions ......................................................................65. Quick start-up guide ...................................................................6

5.1 Before you begin ................................................................... 65.2 Quick start-up procedure ...................................................... 6

6. Modbus interface ........................................................................66.1 Modbus implementation ....................................................... 66.2 Modbus function codes ........................................................ 66.3 Device Modbus register maps ............................................... 86.4 How units are used ............................................................. 116.5 Modbus register Map note references ................................ 11

7. Formulas used in volume calculation ......................................138. Installing digital setup software ...............................................149. Setting up and calibrating the Modbus Interface .....................15

9.1 Data from Device tab ........................................................... 159.2 Volume Calculations tab ...................................................... 17

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1. Contact information

United States

GeneralTel: +1-919-677-0100Fax: +1-919-677-2343E-mail: [email protected]://www.mtssensors.com

Mailing and shipping addressMTS Systems CorporationSensors Division3001 Sheldon DriveCary, North Carolina, 27513, USA

Customer serviceTel: +1-800-633-7609Fax: +1-800-498-4442E-mail: [email protected]

Technical support and applications24 Hour Emergency Technical SupportTel: +1-800-633-7609e-mail: [email protected]

Germany

GeneralTel.: +49-2351-9587-0Fax: +49-2351-56491e-mail: [email protected]://www.mtssensors.com

Mailing and shipping addressMTS Sensor Technologie, GmbH & Co. KGAuf dem Schüffel 9D - 58513 Lüdenscheid, Germany

Technical support and applicationsTel.: +49-2351-9587-0e-mail: [email protected]://www.mtssensors.com

Japan

GeneralTel.: +81-42-775-3838Fax: +81-42-775-5516 e-mail: [email protected]://www.mtssensors.com

Mailing and shipping addressMTS Sensors Technology Corporation737 Aihara-cho, Machida-shiTokyo 194-0211, Japan

Technical support and applicationsTel.: +81-42-775-3838Fax: +81-42-775-5512

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2. Terms and definitions

6A Heavy Oils‘Generalized Crude Oils’, Correction of Volume to 60 °F against API Gravity.

6B Light Oils‘Generalized Products’, Correction of Volume to 60 °F against API Gravity.

6C Chemical‘Volume Correction Factors (VCF)’ for individual and special applica-tions, volume correction to 60 °F against thermal expansion coeffi-cients.

6C ModAn adjustable temperature reference for defining VCF.

A

API Gravity The measure of how heavy or light a petroleum liquid is compared to

water. Allowable values are 0 to 100 degrees API for (6A) and 0 to 85 degrees API for (6B).

D

DDA ‘Direct Digital Access’ – The proprietary digital protocol developed by

MTS for use in intrinsically safe areas.

Density Mass divided by the volume of an object at a specific temperature. The

density value should be entered as lb / cu. ft..

E

Explosionproof Type of protection based on enclosure in which the parts which can

ignite an explosive gas atmosphere are placed within, and which can withstand the pressure developed during an internal explosion of an ex-plosive mixture, and which prevents the transmission of the explosion to the explosive gas atmosphere surrounding the enclosure.

F

Flameproof Type of protection based on enclosure in which the parts which can

ignite an explosive gas atmosphere are placed within and which can withstand the pressure developed during an internal explosion of an ex-plosive mixture, and which prevents the transmission of the explosion to the explosive gas atmosphere surrounding the enclosure.

FOUNDATION™ fieldbus An all digital, serial, two-way communications system that serves as

the base-level network in a plant or factory automation environment. Developed and administered by the fieldbus FOUNDATION™.

G

GOVI ‘Gross Observed Volume of the Interface’ – The total volume of the tank

occupied by the interface liquid. The GOVI is only given when mea-suring two liquids and is calculated by subtracting the volume of the product from the total volume of liquid in the tank (GOVT – GOVP).

GOVP ‘Gross Observed Volume of the Product’ – The total volume of the tank

occupied by the product liquid. When measuring only one liquid, it is also the total volume of liquid in the tank (GOVT). When measuring two liquids it is the total volume of liquid in the tank minus the volume of the interface liquid (GOVT – GOVI).

GOVT ‘Total Gross Observed Volume’ – The total volume of liquid in the tank.

When measuring only one liquid it is equal to the volume of the product (GOVP). When measuring two liquids it is equal to the volume of the product and interface liquids (GOVP + GOVI).

GOVU ‘Gross Observed Volume Ullage’ – the difference in volume between the

working capacity of a tank and the total volume in the tank (Working Capacity – GOVT).

H

HART® A Bidirectional communication protocol that provides data access

between intelligent field instruments and host systems.

I

Interface Noun; The measurement of the level of one liquid when that liquid is

below another liquid.

Interface Adj.; The Software Graphical User Interface (GUI) that allows the user

to access software protocols (HART, DDA, MODBUS).

Intrinsic safety ‘Intrinsically safe’ - Type of protection based on the restriction of

electrical energy within apparatus of interconnecting wiring exposed to potentially explosive atmosphere to a level below that which can cause ignition by either sparking or heating effects.

5


M

Mass The property of a body that causes it to have weight in a gravitational

field, calculated by density at the reference temperature multiplied by the volume correction factor (Density * VCF).

MODBUS A serial communications protocol published by Modicon in 1979 for use

with its programmable logic controllers (PLCs). It has become a de fac-to standard communications protocol in industry, and is now the most commonly available means of connecting industrial electronic devices.

N

NEMA Type 4X A product Enclosure intended for indoor or outdoor use primarily to

provide a degree of protection against corrosion, windblown dust and rain, splashing water, and hose-directed water; and to be undamaged by the formation of ice on the enclosure. They are not intended to provide protection against conditions such as internal condensation or internal icing.

NPT U.S. standard defining tapered pipe threads used to join pipes and

fittings.

NSVP ‘Net Standard Volume of the Product’ – The temperature corrected

volume for the product liquid in the tank, requires the transmitter to be ordered with temperature measurement capabilities. The NSVP is calculated by multiplying the volume of the product liquid by a volume correction factor based on temperature (GOVP * VCF).

R

Reference Temperature The temperature at which the density measurement is given, the allow-

able values are 32 °F to 150 °F (0 °C to 66 °C).

S

Specific Gravity The density ratio of a liquid to the density of water at the same condi-

tions.

Sphere Radius The internal radius of the sphere that contains the liquid, the value is

used to calculate the volume along with the Sphere Offset.

Sphere Offset An offset value that accounts for additional volume in a sphere from

non-uniform sphere geometry, the value is used to calculate the volume along with the Sphere Radius.

Strap TableA table of measurement correlating the height of a vessel to the volume that is contained at that height. The transmitter can contain up to 100 points.

T

TEC ‘Thermal Expansion Coefficient’ - a value correlating the change in tem-

perature for an object with the change in its volume. Allowable values are 270.0 to 930.0. TEC units are in 10 E-6/Deg F.

Temperature Correction Method One of five product correction methods used to correct the product

volume in the tank due to changes in temperature from 60 °F including (6A, 6B, 6C, 6C Mod, and Custom Table.

V

Volume Calculation Mode One of two methods use to calculate volume measurements from level

measurements, including Sphere and Strap Table.

VCF ‘Volume Correction Factor’ – A table of measurements correlating

temperature points with correction factors for the liquids expansion/contraction. The transmitter can contain up to 50 points.

W

Working Capacity The maximum volume of liquid that the user desires for their vessel to

hold, typically 80% of the vessels maximum volume before overfill.

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3. Introduction

3.1 Purpose and use of this manual

The content of this technical documentation and of its various annexes is intended to provide information on mounting, installation and commissioning by qualified service personnel according to IEC 60079-14 and/or MTS trained service technicians and local regulations.

3.2 Used symbols and warningsWarnings are intended for your personal safety and for avoidance of damage to the described product or connected devices. In this documentation, safety information and warnings to avoid dangers that might affect the life and health of personnel or cause material damage are highlighted by the preceding pictogram, which is defined below.

4. Safety instructions

4.1 Intended useThe purpose of this document is to provide detailed information on the protocol interface. All safety related information is in the product specific operation manual. Consult the operation manual before connecting to the level transmitter.

5. Quick start-up guide

5.1 Before you begin

Note:

You must use a RS-485 converter with “Send Data Control” and the

M-Series Set-up Software to ensure proper operation.

Example: B & B Electronics 485BAT3 (815-433-5100 www.bb-elec.com).

5.2 Quick start-up procedure1. Connect +24 Vdc to terminals.2. Connect data lines to terminals.3. Connect the PC (or other device) to data lines. (If you are using a PC, use a RS-232 to RS-485 converter. See Note above for more information.) 4. Turn on power to the transmitter.5. Start the Digital Setup Software. Click the ‘Data From Device’ tab. Click the ‘Device’ pull down menu (located in the upper right corner of the window) to verify communications using factory default address ‘247 ’ for Modbus.

Before starting the operation of the equipment read this documentation thoroughly and follow the safety information.

Symbol Meaning

NOTICE This symbol is used to point to situationsthat may lead to material damage and/or personal injury.

6. Change the address to one that is suitable for the installation network. 7. Verify proper operation of product and or interface floats and temperature. 8. Turn off power to the transmitter. 9. Remove data lines. 10. Install the transmitter into the vessel (see Installation and mounting on page 11). 11. Reconnect power and data lines. 12. Verify communications with the host system (repeat step 5). 13. Calibrate current tank level (optional). Setup is complete.

6. Modbus Interface

Note:

Termination and biasing of RS-485 data lines are as follows:

Biasing Each M-Series transmitter has internal high impedance biasing resistors (30K Ω) on both RS-485 data lines. No additional biasing resistors should be present on the connecting devices (PLC, DCS, PC, Converter).

Termination Each M-Series transmitter has an internal termination resistor (100K Ω) installed across the RS-485 signal lines. No additional termination resistors are necessary in the connecting devices (PLC, DCS, PC, Converter).

6.1 Modbus implementationThe Modbus implementation for the digital transmitter conforms to the ‘Modicon Modbus Protocol Reference Guide, PIMBUS-300 Rev. G’ available from Modicon, Inc. The information provided below assumes familiarity with the Modbus protocol as outlined in this reference guide. All information provided applies to Modbus RTU protocol only.

6.2 Modbus function codes

Communication parameters:

Modbus: 4800 BAUD or 9600 8, N, 1(Reference) Monitor: Modbus RTU Variable BAUD Rate 8, E, 1

The following Modbus function codes are supported:Function 03 - Read Holding RegistersFunction 04 - Read Input RegistersFunction 06 - Preset Single RegisterFunction 08 - Diagnostics (Subfunction 00, Return Query Data)

Default communication parameters

Modbus: 4800 BAUD 8, N, 1

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Function 08 - Diagnostics (Subfunction 01, Restart Communications Option)Function 08 - Diagnostics (Subfunction 04, Force Listen Only Mode)Function 16 - Preset Multiple RegistersFunction 17 - Report Slave ID

Function 03 - Read Holding Registers

The device responds to this message by returning the contents of the requested data register(s). (See ‘Device Modbus Register Maps’ on page 22).

The following implementation-specific considerations apply:

» If an unsupported or reserved register is requested, exception code #2 is returned (See ‘Device Modbus Register Maps’ on page 212 for unsupported/reserved registers). » If a register contains an device error a maximum negative value

is returned. » If a register is blank, indicating that the desired function is not

enabled (e.g., volume calculations) a max negative value is returned. » Unsupported or reserved bits will always be set to 0. See ‘Device

Modbus Register Maps’ on page 22 for alarm bit definitions.

Function 04 - Read Input Registers

This function is handled exactly the same as Function 03. (Be advised that all registers are read-only in this implementation).

Function 06 – Preset Single Registers

Confirmation of successful transmission is confirmed when the device responds by echoing back what was sent.

Function 08 - Diagnostics (Subfunction 00, Return Query Data)

The device responds to this request with the following data:Slave address: echoedFunction: 08HSubfunction high: 00HSubfunction low: 00HQuery data (16-bit): echoedError check: 16-bit CRC/8-bit LRC

Function 08 - Diagnostics (Subfunction 01, Restart Communications Option)

Note:

The communications event log is not supported. The “Query data” field

is irrelevant (normally, FF00H would clear the log).

If the device is in listen-only mode, the device responds to this message by switching out of listen-only mode - (resulting in no response being sent to the request).

If the device is not in listen only mode, it responds as follows:Slave address: echoedFunction: 08HSubfunction high: 00H

Subfunction low: 01HQuery data (16-bit): echoed (0000H or FF00H)Error check: 16-bit CRC/8-bit LRC

Function 08 - Diagnostics

(Subfunction 04, Force Listen-Only Mode)

The device responds to this request by switching to listen-only mode. Messages are still received and parsed, but no responses are transmitted. To switch out of listen-only mode, issue a ‘Restart Communications Option’ request (function 08, subfunction 01) or cycle power.

Function 16 - Preset Multiple Registers

The device response returns the slave address, function code, starting address, and quantity of registers preset.

Function 17 - Report Slave ID

The device responds to this request with the following data:Slave address: echoedFunction: 11HByte count: 05HSlave ID: FFHRun indicator status: FFH (ON)Additional data: ‘DMS’Error check: 16-bit CRC/8-bit LRC

Modbus Exception Codes

The following standard Modbus exceptions are implemented:

Error code 01 (Illegal Function)

Reported when: » A function other than 03, 04, 06, 08, 16 or 17 is requested » Function 08 is requested, and a subfunction other than 00, 01,

or 04 is requested, or when invalid register within set is requested

Error code 02 (Illegal Data Address)

Reported when: » Function 03 or 04 is requested and the starting register number

is greater than 5198 (register greater than 35198 or 45198) » Function 03 or 04 is requested and a register within the requested

register set is invalid

Error code 03 (Illegal Data Value)

Reported when: » Function 03 or 04 is requested and the number of data points

is greater than 800.

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6.3 Device Modbus register maps

30001 0000 Product Level HighWord (x 1000)

2, Page 123, Page 12

30002 0001 Product Level Low Word (x 1000)

30003 0002 Interface Level High Word (x 1000)

30004 0003 Interface Level Low Word (x 1000)

30005 0004 Roof Level High Word (x 1000)

Inactive

30006 0005 Roof Level Low Word (x 1000)

Inactive

30007 0006 Temperature 1 High Word (x 10000)

4, Page 12

30008 0007 Temperature 1 LowWord (x 10000)

30009 0008 Temperature 2 HighWord (x 10000)








30017 0016 Temperature Average High Word (x 10000)

5, Page 12

30018 0017 Temperature Average Low Word (x 10000)

30019 0018 GOVP High Word 6, Page 12

30020 0019 GOVP Low Word

30021 0020 GOVI High Word 7, Page 12

30022 0021 GOVI Low Word

30023 0022 GOVT High Word 8, Page 12

30024 0023 GOVT Low Word

30025 0024 GOVU High Word 9, Page 12

30026 0025 GOVU Low Word

30027 0026 NSVP High Word 10, Page 12

30028 0027 NSVP Low Word

30029 0028 MASS High Word

30030 0029 MASS Low Word

ModbusRegister

DataAddress

DataDescription‡ denotes duplicate register

NoteReference

ModbusRegister

DataAddress


NoteReference

30031 0030 Temperature Cor-rection Method High Word

11, Page 12

30032 0031 Temperature Cor-rection Method Low Word

30033 0032 API Gravity High Word (x 100)

30034 0033 API Gravity Low Word (x 100)

30035 0034 Working Capacity High Word (x 10)

30036 0035 Working Capacity Low Word (x 10)

30037 0036 TEC High Word (x 10000000)

12, Page 12

30038 0037 TEC Low Word (x 10000000)

30039 0038 Density High Word (x 100)

13, Page 12

30040 0039 Density Low Word (x 100)

30041 0040 Reference Tempera- ture High Word (x 10)

14, Page 12

30042 0041 Reference Tempera- ture Low Word (x 10)

30043 0042 Volume Calculation Mode High Word

15, Page 12

30044 0043 Volume Calculation Mode Low Word

30045 0044 Sphere Radius High Word (x 10)

16, Page 12

30046 0045 Sphere Radius Low Word (x 10)

30047 0046 Sphere Offset High Word (x 10)

17, Page 12

30048 0047 Sphere Offset Low Word (x 10)

30049 0048 Average Interval High Word

18, Page 12

30050 0049 Average Interval Low Word

30051 0050 Alarm/Status High Word

19, Page 13

30052 0051 Alarm/Status Low Word

30053 0052 VCF Calculation Error Status

20, page 13

30054 0053 Volume Calculation Error Status

21, page 13

30055 0054 Resets the EEPROM CRC

9


ModbusRegister

DataAddress


NoteReference

ModbusRegister

DataAddress


NoteReference

30056 0055 Resets the EEPROM data to factory

30057 0056 Resets the EEPROM data to defaults

30058 0057 Temperature sensor status high word

30059 0058 Temperature sensor status low word

30060 -30099

0059 -0098

Reserved 22, page 13

30100 0099 Temperature Units High

23, page 13

30101 0100 Temperature Units Low

30102 0101 Density Units High 24, page 13

30103 0102 Density Units Low

30104 0103 Volume Units High 25, page 13

30105 0104 Volume Units Low

30106 0105 Length Units High 26, page 13

30107 0106 Length Units Low

30108 0107 Mass Units High 27, page 13

30109 0108 Mass Units Low

30110 0109 Set New Device Address

28, page 13

30111 0110 Reboot the device

30112-30199

0111-0108 Reserved 22, Page 13

30200 199 Product Level High Word (x1000) ‡

2, Page 123, Page 12

30201 200 Product Level Low Word (x1000) ‡

30202 201 Interface Level HighWord (x1000) ‡

30203 202 Interface Level Low Word (x1000) ‡

30204 203 Roof Level High Word (x1000) ‡

Inactive

30205 204 Roof Level Low Word (x1000) ‡

Inactive

30206 205 Temperature 1 High Word (x10000)

4, Page 12

30207 206 Temperature 1 Low Word (x10000)




30211 210 Temperature 3 LowWord (x10000)



















30230 229 Temperature Average High Word (x10000)

5, Page 12

30231 230 Temperature Average Low Word (x10000)

30232 231 GOVP High Word ‡ 6, Page 12

30233 232 GOVP Low Word ‡

30234 233 GOVI High Word ‡ 7, Page 12

30235 234 GOVI Low Word ‡

30236 235 GOVT High Word ‡ 8, Page 12

30237 236 GOVT Low Word ‡

30238 237 GOVU High Word ‡ 9, Page 12

30239 238 GOVU Low Word ‡

30240 239 NSVP High Word ‡ 10, Page 12

30241 240 NSVP Low Word ‡

30242 241 MASS High Word ‡

6.3 Device Modbus register maps (continued)

10


ModbusRegister

DataAddress


NoteReference

ModbusRegister

DataAddress


NoteReference

30243 242 MASS Low Word ‡

30244 243 Temperature Cor-rection Method High Word ‡

11, Page 12

30245 244 Temperature Cor-rection Method Low Word ‡

30246 245 API Gravity High Word (x100) ‡

30247 246 API Gravity Low Word (x100) ‡

30248 247 Working Capacity High Word (x10) ‡

30249 248 Working Capacity Low Word (x10) ‡

30250 249 TEC High Word (x10000000) ‡

12, Page 12

30251 250 TEC Low Word (x10000000) ‡

30252 251 Density High Word (x100) ‡

13, Page 12

30253 252 Density Low Word (x100) ‡

30254 253 Reference Tempe-rature High Word (x10) ‡

14, Page 12

30255 254 Reference Tempe-rature Low Word (x10) ‡

30256 255 Volume Calculation Mode High Word ‡

15, Page 12

30257 256 Volume Calculation Mode Low Word ‡

30258 257 Sphere Radius High Word (x10) ‡

16, Page 12

30259 258 Sphere Radius Low Word (x10) ‡

30260 259 Sphere Offset High Word (x10) ‡

17, Page 12

30261 260 Sphere Offset Low Word (x10) ‡

30262 261 Average Interval High Word ‡

18, Page 12

30263 262 Average Interval Low Word ‡

30264 263 Alarm/Status HighWord ‡

19, Page 13

30265 264 Alarm/Status Low Word ‡

30266 265 VCF Calculation ErrorStatus ‡

20, Page 13

30267 266 Volume Calculation Error Status ‡

21, page 13
























22, Page 12




11


ModbusRegister

DataAddress


NoteReference

ModbusRegister

DataAddress


NoteReference




30300 299 Temperature Units High ‡

23, page 13

30301 300 Temperature Units Low ‡

30302 301 Density Units High ‡ 24, page 13

30303 302 Density Units Low ‡

30304 303 Volume Units High ‡ 25, page 13

30305 304 Volume Units Low ‡

30306 305 Length Units High ‡ 26, page 13

30307 306 Length Units Low ‡

30308 307 Mass Units High ‡ 27, Page 13

30309 308 Mass Units Low ‡

30310 309 Set New Device Address ‡

28, page 13

30311-31108


31109 1108 Alarm Units High 29, Page 13

31110 1109 Alarm Units Low

31111 1110 Interface High Alarm High (x 100)

30, Page 14

31112 1111 Interface High Alarm Low (x 100)

31113 1112 Interface Low Alarm High (x 100)

31, Page 14

31114 1113 Interface Low Alarm Low (x 100)

31115 1114 Product High Alarm High (x 100)

32, Page 14

31116 1115 Product High Alarm Low (x 100)

31117 1116 Product Low Alarm High (x 100)

33, Page 14

31118 1117 Product Low Alarm Low (x 100)

31119 1118 Roof High Alarm High (x 100)

34, Page 14

31120 1119 Roof High Alarm Low (x 100)

31121 1120 Roof Low Alarm High (x 100)

35, Page 14

31122 1121 Roof Low Alarm Low (x 100)

31123 1122 Temperature AverageHigh Alarm High(x100)

36, Page 14

31124 1123 Temperature Average High Alarm Low(x 100)

31125 1124 Temperature Average Low Alarm High (x 100)

37, Page 14

31126 1125 Temperature Average Low Alarm Low

31127–37216



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6.4 How units are usedRegisters that are read or preset are done so using the current unit type’s programmed unit.

For example: If the current unit type is ‘Length’ and you currently have selected ‘Feet’ as your unit, then the value returned will be in that unit. Make sure the value programmed is also done so using that unit.

6.5 Modbus Register MAP Note references

1. All registers can be accessed using either Modbus Function

03 (Read Holding Registers) or Modbus Function 04 (Read Input Registers). However, all registers are read-only in this implementation. For example: Registers 30001 and 30002 (using Function 03) can also be read as registers 40001 and 40002 (using Function 04).

2. Pairs of registers identified as ‘High Word’ and ‘Low Word’ must be read together reading the ‘High Word” first. Both values need to be concatenated by the master to form a 32-bit unsigned ‘long word’ quantity. For example: Register 30001 (16-bit high word) = 0002H (Must be read first) Register 30002 (16-bit low word) = 3F8CH Long word (32-bit) = 00023F8CH (decimal 147340) Or: Register 30001 (high word) = 2 Register 30002 (low word) = 16268 Multiply register 30001 x 65536 : 2 x 65536 = 131072 Add result to register 30002 : 131072 + 16268 = 147340

3. All registers identified as ‘(x 10)’,’(x 100)’ ,’(x 10000)’ ,’ (x 100000000)’ or ‘(x 1000)’ have been scaled (multiplied) by a factor of 10, 100, 1000, 10000 or 10000000 before transmission to preserve the fractional portion of the data value. The master must divide these values by the scale factor as necessary. For example: Register 30001 (16-bit high word) = 0002H Long word (32-bit) = 00023F8CH (decimal 147340) Divide by 1000, actual value = 147.340

4. Individual digital temperature

5. Average submerged temperature

6. GOVP = Gross Observed Volume Product

7. GOVI = Gross Observed Volume Interface

8. GOVT = Gross Observed Volume Total

9. GOVU = Gross Observed Volume Ullage

10. NVSP = Net Standard Volume of Product

11. Temperature Correction Method There are five methods to choose from: 1 = (6A) Heavy Oils 2 = (6B) Light Oils 3 = (6C) Chemicals 4 = Chemicals with wider coefficients than 6C and a movable reference temperature (6C Mod). 5 = Custom Table.

12. Thermal Expansion Coefficient (TEC) Temperature correction method ‘6C’ uses the thermal expansion coefficient of the product being measured to determine the volume correction factor. Allowable values are 270.0 to 930.0. TEC Units are in 10E-6/Deg F.

13. Density Temperature correction method ‘6C’ and ‘Custom Table’ requires you to enter the density (at the given reference temperature) of the product being measured for the net mass calculation.

14. Reference Temperature This is the desired base temperature for the VCF calculation when Temperature Correction Method ‘6C Mod’ is used.

15. Volume Calculation Mode This is the mode you wish the volume calculations to be performed by: 1 = Use Strap Table 0 = Use Sphere Calculation

16. Sphere Radius The radius of the sphere when volume calculations are performed (using the sphere calculation mode).

17. Sphere Offset The offset of the sphere when volume calculations are performed (using the sphere calculation mode).

18. Average Interval All level, temperature and volume calculation can be averaged using timed method. Allowable values are as follows: 0 = 1 second (default) 5 = 5 seconds 10 = 10 seconds 15 = 15 seconds 20 = 20 seconds 25 = 25 seconds 30 = 30 seconds 35 = 35 seconds 40 = 40 seconds 45 = 45 seconds 50 = 50 seconds 55 = 55 seconds 60 = 60 seconds

13


6.6 Modbus Register MAP Note references (cont‘d.)

19. Alarm/Status bit definitions: D1 Interface Alarm High D2 Interface Alarm Low D3 Product Alarm High D4 Product Alarm Low D5 Roof Alarm High D6 Roof Alarm Low D7 Average Temperature Alarm High D8 Average Temperature Alarm Low D9 Magnet Is Missing D10 Digital Temperature 0 Error D11 Digital Temperature 1 Error D12 Digital Temperature 2 Error D13 Digital Temperature 3 Error D14 Digital Temperature 4 Error D15 Digital Temperature Average Error D16 – D32 Reserved For each corresponding alarm bit: 0 = ALARM OFF 1 = ALARM ON Reserved bits will always be set to 0 (OFF).

20. Volume Correction Factor Calculation Error Status. This value can only be read. If there is no error performing the volume correction factor then the value is zero otherwise, the value is a non-zero code and one of the following: 1 = Invalid API value or invalid temperature input value for 6A or 6B VCF calculation. 2 = Invalid API value or invalid temperature input range for 6A VCF calculation. 3 = Invalid API value or invalid temperature input range for 6B VCF calculation. 4 = Invalid API value or invalid temperature input value for 6C VCF calculation. 5 = Invalid API value or invalid temperature range for 6C VCF calculation. 6 = Invalid API value or invalid temperature range for 6C Wide VCF calculation. 7 = Invalid delta temperature for 6C VCF calculation. 8 = Interpolation error, temperature value not found in the table. 9 = Invalid or No VCF method selected. 21. Volume Calculation Error Status This value can only be read. If there is no error performing the volume calculations then the value is zero otherwise the value Is a non-zero code and one of the following: 1 = Negative table entries are not allowed. 2 = Interpolation error, level value not found in the table. 3 = Sphere Calculation error, level exceeds sphere radius x 2. 4 = Calculated a negative volume value.

22. Undefined or reserved registers within the register map will return a maximum negative value (8000H, or 80000000H for register pairs). Attempting to read registers outside the register map (35198 or higher) will cause a Modbus Exception Error Code 02 (Illegal Data Value) to be returned.

23. Temperature Units The value for temperature units can be one of the following codes: 0 = Celsius 1 = Fahrenheit

24. Density Units High The value for density units can be one of the following codes: 0 = Grams/Milliliters 1 = Grams/Liter 2 = Kilograms/Cubic Meters 3 = Kilograms/Liter 4 = Pounds/Cubic Inch 5 = Pounds/Cubic Foot 6 = Pounds/Gallon 7 = Tonnes/Cubic Meter 8 = Tons/Cubic Yard

25. Volume Units The value for volume units can be one of the following codes: 0 = Liters 1 = Cubic Millimeters 2 = Cubic Meters 3 = Cubic Inches 4 = Cubic Feet 5 = Gallons 6 = Barrels

26. Length Units The value for length units can be one of the following codes: 0 = Millimeters 1 = Centimeters 2 = Meters 3 = Kilometers 4 = Inches 5 = Feet 6 = Yards

27. Mass Units The value for mass units can be one of the following codes: 0 = Kilograms 1 = Grams 2 = Ounces 3 = Pounds 4 = Tons 5 = Tonnes

28. Set New Device Address This register will program the new device address. Valid values for Modbus are between: 1 – 247.

29. Alarm Units This register programs the unit type for which you can configure alarms. Product and Interface can be ‘Volume or ‘Length’ unit type, however Roof can only be ‘Length’ unit type. Valid Values are as follows: 2 = Volume Units Type. 3 = Length Units Type.

14


30. Interface High Alarm The value for which the Interface cannot be >=. Make sure the value is programmed in the current Alarm Units type. (See Note 29)

31. Interface Low Alarm The value for which the Interface cannot be <=. Make sure the value is programmed in the current Alarm Units type. (See Note 29)

32. Product High Alarm The value for which the Product cannot be >=. Make sure the value is programmed in the current Alarm Units type. (See Note 29)

33. Product Low Alarm The value for which the Product cannot be <=. Make sure the value is programmed in the current Alarm Units type. (See Note 29)

34. Roof High Alarm The value for which the Roof cannot be >=. This value can only be in unit type of Length. (See Note 29)

Roof Low Alarm The value for which the Roof cannot be <=. This value can only be in unit type of Length. (See Note 29)

35. Temperature Average High Alarm The value for which the Average Temperature cannot be >=.

36. Temperature Average Low Alarm The value for which the Average Temperature cannot be <=. 7. Formulas used in volume calculation

1. GOVP = GOVT - GOVI (two float system) GOVP = GOVT (one float system) GOVT= GOVP + GOVI (two float system) GOVT= GOVP (one float system) GOVU = WORKING CAPACITY - GOVT (one or two float system) The gross observed volume of the product (GOVP) is equal to the total volume of the tank (GOVT) minus the interface volume (GOVI). The GOVT is measured by the product float (the float closest to the flange of the transmitter) and the GOVI is meas ured by the interface float (the float closest to the tip of the transmitter). The level information from the transmitter is used along with the strap table to calculate the corresponding gross observed volumes.

2. NSVP = GOVP x VCF The net standard volume of the product (NSVP) is equal to the gross observed volume of the product (GOVP) multiplied by the volume correction factor (VCF). The VCF is calculated from thermal expansion properties of the product (programmed by the user) and the temperature information from the gauge.

(see 4. VOLUME CORRECTION FACTOR) for details.

3. MASS = NSVP x DENSITY The mass of the product (MASS) is equal to the net standard volume of the product (NSVP) multiplied by the density of the prod uct (DENSITY) programmed by the user.

4. VOLUME CORRECTION FACTOR VCF = EXP - A(T) X (t-T) x [1 +(0.8 x A(T) x (t-T))] Where: t = any temperature* T = BASE TEMPERATURE (60 DEGREES F) A(T) = coefficient of thermal expansion at the base temperature T Where: EXP is the exponential function (eX). The coefficient of thermal expansion at the base temperature is related to the density of the product at the base temperature T by: A (T) = [K0 + K1 x DEN (T)] / [DEN (T) x DEN (T)] Where: Density is defined in units of KG/M3 K0 and K1 are constants related to each product. *API 2540 states that temperature data is rounded to the nearest tenth (0.1) degree.

This section includes all the constants used by the software to calculate the volume correction factors and valid ranges for the API (density) and temperature data.

Valid temperature range Valid gravity ranges (API)

0 to +300.0 °F 0 to 40.0 °API

0 to +250.0 °F 40.1 to 50.0 °API

0 to +200.0 °F 50.1 to 100.0 °API

Product type Constants Valid gravity ranges (API)

Fuel oil K0 = 103.8720K1 = 0.2701

0.0 to 37.0 °API

Jet group K0 = 330.3010K1 = 0.0

37.1 to 47.9 °API

Transition group

K0 = 1489.0670K1 = -0.0018684

48.0 to 52.0 °API

Gasoline K0 = 192.4571K1 = 0.2438

52.1 to 85.0 °API

ConstantsK0 = 341.0952

K1 = 0.0

Table 1. 6A heavy oils

Table 2. 6B light oils

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Note:

Volumetric modes 6C MOD and CUST TAB are not intended for custody transfer applications since they do not follow API standard 2540 exactly. The software for 6C MOD incorporates a moveable temperature reference and allows for a wider range of TEC values.


8. Installing the digital setup software

Adjustments to the calibration and set up parameters of the transmitter can be performed using the Digital Setup Software package. The software can be run from any PC using a RS-485 to RS-232 converter (See Table 9 MTS part number references). In the ‘MTS Digital Gauge Configuration - Modbus -COM’ window, you will see two tabs labeled ‘Data From Device’ (see Figure 14 ) on page 32 and ‘Volume Calculations’ (see Figure 15 on page 32). You will use these tabs to calibrate the transmitter and change setup parameters.

Perform the following steps to install the transmitter setup software to establish communications with the transmitter:

1. Install Setup Software from the CD that came with your transmitter or go to www.mtssensors.com to download the latest version.2. Connect transmitter to the RS-485 to RS-232 converter and attach the converter to your PC. Some PC’s will require an additional Serial to USB converter.3. Open the Software program.4. Select COM Port. If you do not know which COM port to select, right click My Computer and select Properties -> Hardware Tab -> Device Manager -> Ports (COM & LPT) to view the list.5. Click the Device: pull-down window and select the ‘transmitter address’, the factory default for Modbus is 247.

Figure 1. Data From Device tab window

Figure 2. Volume calculations tab window

Note:You must use a RS-485 converter with ‘Send Data Control’ when using the LP-Series Digital Setup software to ensure proper operation. Example: B & B Electronics 485BAT3 (815-433-5100 www.bb-elec.com).

Valid temperature range Valid TEC ranges

0 to +300.0 °F 0 to 40.0 °API

0 to +250.0 °F 40.1 to 50.0 °API

0 to +200.0 °F 50.1 to 85.0 °API

Software Order number

PC Digital Setup Software (Modbus) CD and RS-485 to RS-232 converter

625051

PC Digital Setup Software (Modbus) CD 625052

RS-485 to USB converter 380114


0 to +300.0 °F 270.0 to 510.0 * 10E-6/ °F

0 to +250.0 °F 510.5 to 530.0 * 10E-6/ °F

0 to +200.0 °F 530.5 to 930.0 * 10E-6/ °F


0 to +300.0 °F 100.0 to 999.0 * 10E-6/ °F

Table 3. 6B light oilsTable 6. MTS part number references

Table 4. 6C chemicals

Table 5. 6C MOD

*For the transition group, A(T) = [K1 + K0 (DEN (T) x DEN (T))]**TEC is the thermal expansion coefficient of the product being measured

*For the transition group, A(T) = [K1 + K0 (DEN (T) x DEN (T)) measured

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9. Setting up and calibrating the Modbus Interface

The following is software parameter information for ‘Data From Device’ tabs:

» Units » Alarms » Offset » Address » Backup/Restore File » Adjust » COM Port » Continuous Update » Data Logging

9.1 Data from Device tab

Units

To change Unit parameters, click the ‘Units’ button in the ‘Data From Device’ tab window. In the ‘Select Units’ window (See Figure 16) you can update units of measurement for length, temperature, volume, mass and density can be changed by selecting the appropriate parameter in the drop down menu, then click ‘Send’. A confirmation popup window confirms the send is successful.

Figure 3. Select Units window

Alarms

To set the Alarms, select the ‘Alarms’ button in the ‘Data From Device’ tab window. A high and low alarm is offered for the product, interface, and average temperature and can be set to either length units or volume units from the pull down menu (See Figure 17) . Each alarm needs to be checked and entered before you click the ‘Send’ button. A confirmation popup window confirms the send is successful.

Figure 4. Alarm Configuration window

Calibration

When you click the ‘Offset’ button in the ‘Data From Device’ tab window, the ‘Offsets’ window opens. There are two calibration ‘Offset Methods’ to choose from, ‘Enter Current Tank Level’ and ‘Enter Level Offset’. Click to open the ‘Offset Method:’ drop down menu and select a calibration me-thod. Choose either method ‘Enter Current Tank Level’ or ‘Enter Current Interface Level’ and type a value in the active field, then click the ‘Send’ button. A confirmation popup window confirms the send is successful.

Figure 5. Offsets window - Enter Current Tank Level

When you choose ‘Enter Level Offset’ from the ‘Offset Method:’ drop down menu, you can adjust the offset where the transmitters zero point is located. This adjustment will significantly shorten the span of the trans-mitter or counter inactive zones. Adjust the value accordingly and click ‘Send’. A confirmation popup window confirms the send is successful.

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Data From Device tab (Continued)

Figure 6. Offsets window - Enter Level Offset method

Address

To change the transmitter address, click the ‘Address’ button in the ‘Data From Device’ tab window. In the ‘Change Address’ window, type the ‘New Address’ in the active field and click ‘Send’. A confirmation popup window confirms the send is successful.

Figure 7. Change Address window - New Address entry

Backup / Restore File

If your electronics requires a replacement or if your current settings need to be refreshed, it is recommended that you create a backup or restorati-on file. To create a backup, click the ‘Backup/Restore’ button in the ‘Data From Device’ tab window . In the ‘Backup and Restore Device Settings” window, click the ‘Get Data From Sensor’ button and ‘Save Settings to File’ button. When prompted, save the file to a designated place where you can find it. To upload a file, click the ‘Read Settings from File’ button and select your backup file. Click ‘Write Data to Sensor’. A confirmation popup window confirms the upload is successful.

Figure 8. Backup and Restore Device Settings window

Adjust

To adjust the Gain, click the ‘Adjust’ button located in the ‘Data From Device’ tab window. The ‘Modbus Adjust Gain’ window displays diffe-rent parameter settings depending on the firmware of the transmitter. All transmitters will have the ability to adjust the ‘Gain’ from this menu. Other transmitters will have the ability to adjust the gain, and display the following; magnet blanking, delta, and blanking reference. None of these parameters should be changed without MTS Technical Support and are password protected. ~mtsdda~

Figure 9. Modbus Adjust Gain window

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COM PortTo select the Setup Software communication port, click the ‘COM Port’ button in the ‘Data From Device’ tab window. Select the appropriate communication port and click ‘OK’.

Figure 10. Select a COM Port window

Continuous Update

To view realtime data using the Setup Software interface, select the

‘Continuous Update’ box. The Interval may be changed to slow down updates but is not necessary.

Data Logging

To download a transmitter data log, Click ‘Select File’ in the ‘Data From Device’ tab window. Select an Excel file and check the ‘Log Data to File’ box to save your data.

9.2 Volume calculations tab

Note:

As a first step always press the ‘Read’ button to determine the trans-mitter’s current configuration. After editing any parameters always press the ‘Write’ button to program the transmitter.

Correction Method

The correction method is selected by clicking the pull down menu and

selecting the appropriate correction method. Available selections include 6A (Heavy Oils), 6B (Light Oils), 6C (Chemical), 6C Mod, Custom Table, and Disabled. If ‘Custom Table’ is chosen, you must click ‘Volume Correction Factor Table’ and enter the table.

API Gravity

Enter the ‘API gravity’ (normalized density) value for the product being measured in the applicable field. Allowable values are: 6A - 0.0 deg to 100.0 deg API 6B - 0.0 deg to 85.0 deg API

TEC (Thermal Expansion Coefficient)

Temperature Correction Method ‘6C’ uses the thermal expansion coefficient of the product being measured to determine the volume correction factor. Allowable values are 270.0 to 930.0. TEC units are in 10 E-6/deg F. In the ‘TEC (6C)’ field, enter the appropriate value.

Reference Temperature

When selecting correction method 6C Mod you will need to enter the desired base temperature for the volume calculations in the ‘Reference Temperature’ field. The allowable values are 32 deg F to 150 deg F.

Density

Entering a density is required when using Temperature Correction Method ‘6C’ or ‘Custom Table’ for net mass calculations. The density measurement should be entered as ‘LB/cu.ft’. at the given reference temperature.

Volume Correction Factor Table

When Custom Table is chosen as the temperature correction method the user has to enter the volume correction factor table. The table will hold up to 50 entries of temperature points and correction factors. Once the file is created it can be saved to a file and kept on a computer for safe keeping or transferred to multiple transmitters. Before closing the user must click ‘Send’ to send the VCF table to the transmitter.

Figure 11. Volume Correction Factor Table window

Volume Calculation Mode

Select between ‘Use Sphere’ and ‘Use Strap Table’ as the volume calculation mode.

Sphere Radius

Enter the radius of the sphere the transmitter is mounted in.

Sphere Offset

In the ‘Sphere Offset’ field, enter the ‘sphere offset parameter’ which is used to add or subtract a fixed volume from the calculated sphere volume. This parameter is typically used to account for volume errors created by non-uniform sphere geometry (i.e. Flat bottoms or internal structures)

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9.2 Volume calculations tab (cont.d)

Working Capacity

In the working capacity field, enter the volume of safe fill level using

the same units defined in the strap table. to calculate Gross Observed Volume Ullage (GOVU).

Average Readings

In the ‘Average Ratings’ pull-down menu, select from preset averaging for the data being calculated. Selections are available from 5 to 60 seconds.

Strap Table

When selecting the ‘Use Strap Table’ volume calculation mode the user must enter a strap table. The interface is capable of handling a 100 point strap table. To enter a strap table click ‘Strap Table’ and click ‘Add’ to start entering each volume and distance point. Once the strap table is entered save a copy to your PC by clicking ‘Write to File.’ Before closing the user must click ‘Send’ to send the strap table to the transmitter. The Strap Table default password is ‘becareful’.

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Document Part Number: 551700 Revision A (EN) 09/2015

Reg.-No. 003095-QN

MTS, Temposonics and Level Plus are registered trademarks of MTS Systems Corporation in the United States; MTS SENSORS and the MTS SENSORS logo are trademarks of MTS Systems Corporation within the United States. These trademarks may be protected in other countries. All other trademarks are the property of their respective owners. Copyright © 2015 MTS Systems Corporation. No license of any intellectual property rights is granted. MTS reserves the right to change the information within this document, change product designs, or withdraw products from availability for purchase without notice. Typographic and graphics errors or omissions are unintentional and subject to correction. Visit www.mtssensors.com for the latest product information. Product change notification alerts are available through the MTS Product Change Management System; register at www.mtssensors.com/PCMS.

LOCA

TION

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LEGA

L NO

TICE

SUSA MTS Systems CorporationSensors Division3001 Sheldon DriveCary, N.C. 27513, USATel. +1 919 677-0100Fax +1 919 [email protected]

JAPANMTS Sensors Technology Corp.737 Aihara-machi, Machida-shi, Tokyo 194-0211, JapanTel. + 81 42 775-3838Fax + 81 42 775- [email protected]

FRANCEMTS Systems SASZone EUROPARC Bâtiment EXA 1616/18, rue Eugène Dupuis94046 Creteil, FranceTel. + 33 1 58 4390-28Fax + 33 1 58 [email protected]

GERMANYMTS Sensor TechnologieGmbH & Co. KGAuf dem Schüffel 958513 Lüdenscheid, GermanyTel. + 49 2351 9587-0Fax + 49 2351 [email protected]

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Magnetostrictive Liquid Level Transmitters with Temposonics … · 2016-04-06 · 6A Heavy Oils...

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Transcript of Magnetostrictive Liquid Level Transmitters with Temposonics … · 2016-04-06 · 6A Heavy Oils...